Reverse Heal skill:
Type /noshift in the chat window when facing undead opponents. By using the Heal skill, you will be attacking them with it. Note: Do not try this on enemies that are not undead, as it will heal them. Hold [Shift] to heal yourself while in this state.

Type /ns in the chat window to enable reversing heal. With it, you can use the heal skill to kill the undead type enemies. Your in-game mouse pointer will now be a sword when you move it over players. This may make it difficult to move around or run away.

Shortcut for continue attacks:
Type /nc in the chat window to enable attacks without having to continuously click the mouse button.

Easy Stun:
Be a Swordman, and get Bash at level 10. Get Fatal Blow. Get a blade with 4 slot and insert 4 Savage Babe card . Use Bash on a monster and it will normally get stunned